Question

please answer its important and i need your help
These are about periodic table please dont copy from net.
okay so here in the question its only talking about first 20 elements​

Answer 1

Explanation:

members:

hydrogen

lithium

sodium

potassium

rubidium

cesium

francium

characteristics :

They are all soft, silver metals. Due to their low ionization energy, these metals have low melting points and are highly reactive.

Answer 2

the members of group 1-A are :- lithium , sodium , potassium, Rubidium , cesium , Francium.

2ans:- they are good conductor of heat and electricity. they have 1 electron in their outer shell ex:- electronic configuration of lithium is 2s^1 and potassium has 4s^1 . they have lustre. All alkali except hydrogen are solid at room temperature.